// Lots of goofing around
// Initially intended to match the Python test.py
// From https://github.com/JohnLangford/vowpal_wabbit/blob/master/python/test.py
func main() {
h := vw.Initialize("-q st --noconstant --quiet")
//example := ReadExample(vw, "1 |s p^the_man w^the w^man |t p^un_homme w^un w^homme")
example := vw.ReadExample(h, "1 |x a b")
score := vw.Learn(h, example)
ex2 := vw.ReadExample(h, "1 |x a b |y c")
vw.Learn(h, ex2)
fmt.Printf("[1 Learns] Pred = %v\n", ex2.GetPrediction())
vw.Learn(h, ex2)
fmt.Printf("[2 Learns] Pred = %v\n", ex2.GetPrediction())
vw.Learn(h, ex2)
fmt.Printf("[3 Learns] Pred = %v\n", ex2.GetPrediction())
vw.Learn(h, ex2)
fmt.Printf("[4 Learns] Pred = %v\n", ex2.GetPrediction())
pred := ex2.GetPrediction()
imp := ex2.GetImportance()
featHash := h.HashFeature("a", 42)
fmt.Printf("Num Features: %v\n", ex2.GetNumFeatures())
fmt.Printf("Loss: %v\n", ex2.GetLoss())
fmt.Printf("GetSimpleLabelPrediction: %v\n", ex2.GetSimpleLabelPrediction())
fmt.Printf("GetSimpleLabelLabel: %v\n", ex2.GetSimpleLabelLabel())
//fmt.Printf("GetUpdatedPrediction: %v\n", ex2.GetUpdatedPrediction())
fmt.Printf("GetSumLoss: %v\n", h.GetSumLoss())
h.Finish()
fmt.Printf("Score = %v Pred: %v Importance: %v FeatHash: %v\n", score, pred, imp, featHash)
}
func main() {
h := vw.Initialize("-q st --noconstant")
iters := 20
for i := 0; i < iters; i++ {
good_score := h.LearnString("1 | good")
bad_score := h.LearnString("-1 | bad")
fmt.Printf("I: %2d GoodScore: %6.3f BadScore: %6.3f\n", i, good_score, bad_score)
}
fmt.Printf("Should be good (1): %v\n", h.LearnString("-1 1 | good"))
fmt.Printf("Should be bad (-1): %v\n", h.LearnString("-1 1 | bad"))
h.Finish()
}
